| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact temperature measuring device which can be used continuously for a long time in a high-temperature environment.SOLUTION: A temperature measuring device 110 includes a temperature measuring device body 50 for processing measurement data, an inner container 30 housing the temperature measuring device body 50 and filled with gypsum G, and an outer container 20 housing the inner container 30 and filled with a heat insulation material M. A thickness ratio of the heat insulation material M with respect to the gypsum G is 1-1.6. The inner container 30 and the outer container 20 are formed in a spherical shape. |
